60538-15-0Relevant articles and documents
(2S, 3R)-3-amino-2-hydroxy-4-phenylbutyrylamide derivative as well as preparation method and application thereof
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Paragraph 0047-0048; 0054-0056, (2021/02/10)
The invention discloses a (2S, 3R)-3-amino-2-hydroxy-4-phenylbutyrylamide derivative shown as a formula (I) or an optical isomer, a diastereomer and racemate mixture and pharmaceutically acceptable salt thereof as well as a preparation method and application of the (2S, 3R)-3-amino-2-hydroxy-4-phenylbutyrylamide derivative. It is shown by comparison of results of a positive control group and a model group on lymphedema prevention experiments that the compound disclosed in the invention shows obvious anti-edema activity.
Bicyclic Lactams Derived from Serine or Cysteine and 2-Methylpropanal
Bagum, Halima,Christensen, Kirsten E.,Genov, Miroslav,Moloney, Mark G.,Pretsch, Alexander,Pretsch, Dagmar,Shire, Bethany R.
supporting information, p. 378 - 382 (2020/02/27)
Bicyclic lactams may be prepared from serine or cysteine and 2-methylpropanal; the resulting S, N -heterocycles are more stable than the corresponding O, N -heterocycles but both are synthetic intermediates capable of further elaboration.
Singlet Oxygen Photooxidation of Peptidic Oxazoles and Thiazoles
Manfrin, Alessandro,Borduas-Dedekind, Nadine,Lau, Kate,McNeill, Kristopher
, p. 2439 - 2447 (2019/02/26)
Oxazoles and thiazoles are commonly found moieties in nonribosomal peptides (NRPs) and ribosomally synthesized post-translationally modified peptides (RiPPs), which are important biomolecules present in the environment and in natural waters. From previous studies, they seem susceptible to oxidation by singlet oxygen (1O2); therefore, we designed and synthesized model oxazole- and thiazole-peptides and measured their1O2 bimolecular reaction rate constants, showing slow photooxidation under environmental conditions. We reasoned their stability through the electron-withdrawing effect of the carboxamide substituent. Reaction products were elucidated and support a reaction mechanism involving cycloaddition followed by a series of rearrangements. The first1O2 bimolecular reaction rate constant for a RiPP, the thiazole-containing peptide Aerucyclamide A, was measured and found in good agreement with the model peptide's rate constant, highlighting the potential of using model peptides to study the transformations of other environmentally relevant NRPs and RiPPs.